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Kmake/deps/v8/test/mjsunit/compiler/reference-equal-boolean.js
2026-05-26 23:36:42 -07:00

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JavaScript

// Copyright 2022 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --turboshaft-enable-debug-features
// Ensure we could reduce reference equal with boolean input.
// When the inputs are all boolean with true constant, we could
// reduce to the input. And when the inputs are all boolean with
// false constant, we could reduce to the input with BooleanNot.
function foo(x, y) {
const v = (x === y);
%TurbofanStaticAssert(((v === true) === v));
%TurbofanStaticAssert((!(v === false) === v));
};
%PrepareFunctionForOptimization(foo);
foo(1, 2);
foo(2, 3);
%OptimizeFunctionOnNextCall(foo);
foo(3, 4);